Mean signal and detectability of the higher-order multipoles, Υ_0, n^×, in the SLICS ensemble, after averaging over all 819 realizations. In the top row, we show the mean signal from the noiseless SLICS ensemble. To aid the visualization, we normalize the multipoles by the product of the corresponding angular bins and further use a logarithmic scaling for positive and negative values in the color map. In the second row, we show the S/N ratio of the modulus of the corresponding multipole component. The third and fourth rows display the same measurements when shape noise is included in the mocks.